Symphonium Crimson and qdc 8PRO use 4BA and 8BA driver setups respectively. Symphonium Crimson costs $1,500 while qdc 8PRO costs $1,540. qdc 8PRO is $40 more expensive. Symphonium Crimson holds a clear 0.5-point edge in reviewer scores (8.4 vs 7.9). Symphonium Crimson has better bass with a 0.6-point edge, qdc 8PRO has better treble with a 0.5-point edge, qdc 8PRO has significantly better dynamics with a 1-point edge and Symphonium Crimson has better imaging with a 0.5-point edge.
Insights
Metric | Symphonium Crimson | qdc 8PRO |
---|---|---|
Bass | 8.6 | 8 |
Mids | 7.7 | 7.5 |
Treble | 7.5 | 8 |
Details | 8.1 | 8 |
Soundstage | 8.3 | 7.9 |
Imaging | 8.5 | 8 |
Dynamics | 7 | 8 |
Tonality | 8 | 7.8 |
Technicalities | 8.2 | 8 |
Symphonium Crimson Aggregated Review Score
Average Reviewer Scores
qdc 8PRO Aggregated Review Score
Average Reviewer Scores
Symphonium Crimson Details
Driver Configuration: 4BA
Tuning Type: U-Shaped
Brand: Symphonium Top Symphonium IEMs
Price (Msrp): $1,500
Support our free service! Buying through our affiliate links costs you nothing extra:
qdc 8PRO Details
Driver Configuration: 8BA
Tuning Type: bass-boosted neutral
Brand: QDC Top QDC IEMs
Price (Msrp): $1,540
Support our free service! Buying through our affiliate links costs you nothing extra:
Symphonium Crimson User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
qdc 8PRO User Review Score
Average User Scores
Average User Score: n/a
Based on 0 user reviews
No user reviews yet. Be the first one who writes a review!
Symphonium Crimson Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
7.1Gaming Grade
A-qdc 8PRO Gaming Score

Gaming Score & Grade
- The gaming score is prioritizing technical capabilities of the IEM (Separation, Layering, Soundstage) and good value.
Gaming Score
6.4Gaming Grade
BSymphonium Crimson Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A+- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
qdc 8PRO Scorings
Average Technical & Tuning Grades
Average Tunign Grade
A- Well-executed tonal character. No major flaws with good technical control. Smooth presentation works with multiple genres.
Average Technical Grade
A+- Very competent with articulate presentation. Well-defined layers and precise imaging. Soundstage is immersive and handles dynamics well.
Symphonium Crimson Reviews
Reviewed by: Z-Reviews
Symphonium Crimson lands with a bang: a four–BA, four-way crossover design that somehow delivers epic energy without a dynamic driver. Tonality reads neutral-bright with thunderous sub-bass—not a basshead hump, but a slab of solid, deep extension that stays clean. Mids stay clear for vocals and strings, treble rises for sparkle and excitement, and the presentation spreads out like pulled-apart audio “shreds” across a big canvas. The effect is clarity, detail, and slam that feel bigger than the driver count suggests, making music and film scores straight-up addictive.
Technical notes matter here. Nominal impedance is a weirdly low ~6Ω, so source pairing can swing results; the set scales and sounds happiest on robust gear that can keep low-impedance loads stable. Despite the armature array, coherency stays intact, dynamics hit harder than expected, and volume headroom invites goosebumps. It’s not a “bass monster,” yet the sub-bass authority and lively treble make it exciting rather than polite, with imaging that feels wide and tactile.
Ergonomics are the gripe list: the short nozzle can challenge seal and the premium cable lacks a formed ear hook, encouraging twist and loosening—tip rolling (even reversed-orientation tricks) helps. Build is flashy—carbon-fiber shell, red inlays, metal case that’s too hefty for travel. Pricing sits around $1,500 (or $1,700 with 8-wire cable); for sheer fun, impact, and best-in-brand performance, the value argument holds. For all-day softness, something like Twilight stays comfier; for movies, big scores, and “wow” sessions, Crimson feels like a must-grab and arguably the best Symphonium to date.
Z-Reviews Youtube Channel
Reviewed by: Jays Audio
Reviewed by: Nymz
Reviewed by: Shuwa-T
Reviewed by: Precogvision
Precogvision Youtube Channel
Reviewed by: Smirk Audio
Reviewed by: Jaytiss
Jaytiss Youtube Channel
qdc 8PRO Reviews
Reviewed by: Smirk Audio
Symphonium Crimson User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own reviewqdc 8PRO User Reviews
"This is an example review"
Pros
- Example pro 1
- Example pro 2
Cons
- Example con 1
- Example con 2
Share your experience and build your personal ranking list.
You need to be signed in to write your own review